"""迁移 024: 注册三套场景 PPTX 模板资产。"""
import json
import logging

from sqlalchemy import text

logger = logging.getLogger(__name__)


TEMPLATES = [
    {
        "id": "scenario_single_savings",
        "name": "单份储蓄计划｜专业版",
        "scenario_tag": "single_savings",
        "plan_type": "savings",
        "style_preset": "broker",
        "asset_id": "builtin://single_savings.pptx",
    },
    {
        "id": "scenario_multi_savings",
        "name": "双储蓄险｜专业对比",
        "scenario_tag": "multi_savings_comparison",
        "plan_type": "savings",
        "style_preset": "broker",
        "asset_id": "builtin://multi_savings_comparison.pptx",
    },
    {
        "id": "scenario_savings_iul",
        "name": "储蓄险 + IUL｜综合方案",
        "scenario_tag": "savings_iul_comprehensive",
        "plan_type": "savings",
        "style_preset": "broker",
        "asset_id": "builtin://savings_iul_comprehensive.pptx",
    },
]


def migrate():
    """解析内置 PPTX，并将模板元数据幂等写入模板表。"""
    from insurance.db.compat import db
    from insurance.ppt.template_asset_service import (
        parse_template_pptx,
        resolve_template_asset,
    )

    for seed in TEMPLATES:
        file_path = resolve_template_asset(seed["asset_id"])
        parsed = parse_template_pptx(file_path)
        existing = db.session.execute(
            text("SELECT id FROM insurance_ppt_templates WHERE id = :id"),
            {"id": seed["id"]},
        ).first()
        values = {
            **seed,
            "clone_renderer": "clone-edit-v2",
            "required_page_types_json": json.dumps(
                parsed["requiredPageTypes"], ensure_ascii=False
            ),
            "slides_config_json": json.dumps(
                parsed["slidesConfig"], ensure_ascii=False
            ),
        }
        if existing:
            db.session.execute(text(
                "UPDATE insurance_ppt_templates SET "
                "name = :name, scenario_tag = :scenario_tag, "
                "source_template_asset_id = :asset_id, clone_ready = true, "
                "clone_renderer = :clone_renderer, "
                "required_page_types_json = :required_page_types_json, "
                "slides_config_json = :slides_config_json "
                "WHERE id = :id"
            ), values)
        else:
            db.session.execute(text(
                "INSERT INTO insurance_ppt_templates "
                "(id, name, scenario_tag, plan_type, style_preset, "
                "source_template_asset_id, clone_ready, clone_renderer, "
                "required_page_types_json, slides_config_json, status) "
                "VALUES (:id, :name, :scenario_tag, :plan_type, :style_preset, "
                ":asset_id, true, :clone_renderer, :required_page_types_json, "
                ":slides_config_json, 1)"
            ), values)

        logger.info(
            "[migrate_024] 已注册模板 %s（%s 页）",
            seed["id"],
            parsed["slideCount"],
        )

    db.session.commit()